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Apparatus for visually indicating a current travel route of a vehicle

  • US 4,484,284 A
  • Filed: 09/02/1981
  • Issued: 11/20/1984
  • Est. Priority Date: 09/04/1980
  • Status: Expired due to Fees
First Claim
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1. A visual travel route indicating apparatus for use in a vehicle, comprising:

  • distance sensor means for detecting a current travel distance of said vehicle;

    gas rate sensor means for detecting a current azimuthal deviation generated by said vehicle during turning operation;

    said gas rate sensor means being isolatedly enclosed in an atmosphere within thermostatic chamber means;

    said thermostatic chamber means comprising a casing having said gas rate sensor means disposed therein and provided with first heating means, and an outer housing having said casing disposed therein and provided with second heating means;

    signal processing means, operatively cooperating with said distance and gas rate sensor means, for arithmetically obtaining a current point plotted on two-dimensional coordinates per a given unit distance of travel of said vehicle in accordance with the output signal from each of said distance and gas rate sensor means; and

    display means, operatively cooperating with said signal processing means, for visually indicating a current path of travel of said vehicle in accordance with location data on the two-dimensional coordinates, changing from time to time as the vehicle progresses in its travel, and obtained by said signal processing means.

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